Type-writing machine.



M. H. LOCKWOOD.

TYPE WRITING MACHINE.

. APPLICATION FILED MAR.28, 1912. 11 Patented Apr. 8, 1913.

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M. H. LOCKWOOD.'

TYPE WRITING MACHINE.

APPLIQATION FILED Mums, 1912.

Patnted Apr. 8, 1913 2 SHEETS-SHEET z.

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WIT/VESSES L50, the

UNTTED sTATEs vrATEiSIT oEEioE.

MARQUIS 4n. LooKwooD, or NEW YRK, N.- Y., AssIGNoR To UNDERwooD TYPE- WRITER COMPANY, or NEW YORK, N. Y., A CORPORATION or DELAWARE.

TYPE-WRITING ii/LACHINE.A

Specification of Letters Patent. e Patented Apr. 8, 1913.

Application led Mar-ch 28, 1912. Serial No. 686,728. l

To all wiz-om t may concern Be it known that I, MAnQUIsH. Loonwoon, a citizen of the United States, and

resident of Manhattan, city, county, and

5 State of New York, have invented certain new andl useful Improvements in Type- Writing Machines, of which the following is a speciication.

. My invention relates more particularly to 1 0 tabulating stops adapted to be arranged in groups and means for moving any one of the groups into operativerposition where the stops are adapted to coperate with the key actuated, tabulator plungers of any usual and well'known typewriter tabulating device.. ,l Itis frequently desirable to fill outseveral different forms` on the typewriter and for this purpose the tabulating stops on the carriage should be arranged to accord with the columnar positions required for each form. t With the ordinary stop rack it is not feasible to have all the different stops for all the.

forms in operative position at the same time, heneeI propose to arrange the several stops required for each form in a group and arrange that each group can be thrown into or `out of operative position at will. Furthermore it is desirable that the arrangement of stops ineach group and of the various groups may be readily changed 'as desired to conform to new or different forms to be filled in onthe machine. I have provided for this by arranging that the stops may be 5 readily interchangeable as to position or as to grouping. Only one group of stops is required to be in operation at a time, theref forethe stops of my device and the controlling means for cach group are so ar- 40 ranged that only one set or group of stops can be moved to operative position at a time and by such movement all the other groups are locked so that none can be moved .to operative position until the group in operative position is withdrawn.

e With the above objects in view I have illustrated one form of my invention in the accompanying" drawings of which- Figurel isa'plan view of the device withI setting knurled head removed; Fig. 2, 1s. aside elevation partly 1n section and broken l away; Fig. 3 is a cross section on line 3-3 of Fig. 2 withstops up; Fig. 4 is a sectional v view along lthe line 4 4 of Fig. 1; Fig. 5 1s a section of Fig. 2 at 5 5; Fig. 6 repre- Athe drawings.

sents a fragment in perspective with slight modification; and Figs. 7 vto `12 represent different stops. I

In the drawings 1 represents a portion of the typewriter carriage, 2 indicates `the upper end of the tabulator plunger case and 3 thevkey actuated plungers. These parts are represented conventionally for it will be understood thatmy device may be attached to any well known typewriter of usual construction such as the'Underwood.

My device com rises two parallel barsl or racks 4, 4a space apart and provided with transverse grooves or notches 5 on the inside or opposingl faces of the hars. The grooves 5 are arranged opposite each other in alinement as in icated in Fi I1. The bars 4, 4EL are preferably secure to end plates or brackets 6 and 7 which are secured to the typewriter carriage in any suitable manner as by screws 8. The notches or grooves 5 'Y in the bars 4, 4F are equably spaced a letter space distance apart, and a suitably graduated scale is provided as indicated by 9 in The` bars 4, 4l1 are spaced apart a suitable distance and adapted to receive stops or tappets 10, in the groove 5, at any desired columnar positions. As preyviously'indicated the stops 10 are intended to be arranged in groups to conform to the different columnar positions of the forms it is desired to fill out on the machine. To accomplish this I have provided a special form of stops `1O each with one or more notches 11 preferably adapted to receive a gear tooth. The stops may also be provided with segmental notehes 12 at the points desired, for the purpose hereinafter explained.v Each of the stops 10 is preferably provided with a resilient member such as` the flat sp. .ig

metal pieces 13, held in place byvpins 14,

able means,.as for instance, by resilient n- A gers 15, as indicated 4in Fig. '6.

Each of the bars 4,V 4 is, 'Ln the present instance, provided with two longitudinal grooves extending the full length of" thev bars. The deeper portion of each groove is semicircular in form and adapted to re ceive and form a support for a rod or shaft 16 provided with afeather or single gear tooth 16awhich extends along the shaft far enough to cover all the transverse grooves 5in the bars 4, 4a and is adapted to enter any of the notches 11 of the stops 10 for the purpose of moving the stop or stops up and down in the grooves 5 as will be more fully described hereinafter. The shafts 16 have bearings in the end plate brackets 6 and 7 and are adapted to be rotated or rocked, about one quarter of a revolution,

as indicated in the drawings. (Compare Figs. 3 'and 5.) The rods or shafts 16 are adapted to be rocked as indicated, and any suitable means may be employed for this purpose but in the present instance I have the following: The shafts or rods 16 extend beyond the end bracket 7 into a box like casing 17 attached thereto. Each shaft 16 is provided with.a pinion segment 18 preferably secured thereto on the end extending into the casing 17, as indicated in Figs. 2

.and 4. As previously stated it is desired to operate each shaft 16 separately, as required, to throw the desired group of stops into operative position. For this purpose I have in the present instance shown the segmental pinions 18 so disposed on their re.- spective shafts 16 as to stand in position to be operated upon by segmentalracks 19, 20 extending from the push rod or shaft 21. The two segmental racks are arranged at right angles to each other and the rack teeth 19 -are adapted to coperate with either of the two upper pinion segments 18 while rack teeth 20 may be brought into cooperative relation with either of the two lower Apinions 18. The relation of these parts will be seen in Fig. 4 which shows the rack teeth 19 in mesh withthe upper right hand pinion segment 18 andthe rod 21 depressed so that the rod 16 has been turned to throw the corresponding group lof stops into operative position. The rod 21 is supported in holes in the,top plate 22 and bottom plate 23 and is thereby adapted for rotation and for up and down sliding movement therein. The upper end of the rod 21 is provided with a knurled head 24 end a feather or key 25, the latter being of4 sufficient length to prevent the rod 21 from being turned except when at its uppermost position. The top plate 22 of the casing 17 is provided with four radial slots or key ways 26, 90 apart, (see Fig. 1) each adapted to coperate with the key or feather 25 when the rod 21 is turned so as to bring one of the rack segments 19, 20 into mesh with the corresponding shaft segment 18 for a particular group. Suitable indicating graduations or characters may be placed on the top plate 22 and adapted to coperate with a suitable pointer 27. From the arrangement of the segmental racks 19, 20 and the feather key 25 it will be seen that b turning the rod to any one of the four positions indicated the corresponding shaft segment 18 will be brought into operative relation to one or the other of the segments 19, 20. Then by pushing down on the knurled head 24 the corresponding pinion segment 18 and shaft 16 will be turned, as indicated in Fig. 4. During depression of the rod 21, as above described, the feather key 25 will enter the corresponding slot 26 4in the top plate and render it impossible to turn the rod 21 and disconnect the rack teeth 19 or 20 (19 in Fig. 4) from the shaft segment 18 with which it is in mesh, thus insuring the restoration of one roup of stops before another can be move to operative position.

The different variety of stops usable with the form of my device here shown and de,- seribed are illustrated in Figs. 7 to' 12 inclusive. In order to have as few varieties as possible I have made the stops interchangeable and reversible4 s that from the stops shown any desired arrangement ofthe groups can be made. For example, if the group shafts 16 are to control stops which are distinct for each group, or, in other words the columnar position of each stop of each group is different from the columnar positions of all stops -n the other grou s, then the stop shown in Fig. 12 would le used. It will be seen that by turning this stop the notches 11 can be brought to stand in position opposite any one of the four shafts 16 as desired and only the feather tooth of that particular shaft will move the stop. When one of the other group shafts 16 is moved its feather tooth 16 will merely rock in the segmental notch 12 of the stop and tend to hold the stop out of operative position. If it is desired that the same columnar position shall be maintained for two groups of stops then a stop having two sets of notches 11 is selected as for instance one of those shown in Fig. 7, Fig. 8 or Fig. 11 according to the two groups requiring the same columnar position for one of the stops. A two-group stop corresponding to that in Fig. 8 is shown in Figs. 3 and 5. In Fig. 3 the stop is shown up or out of operative position and it will be seen that either of the right hand group-shafts 16 is adapted to move the stop; but if either of the left hand shafts 16 is rocked the stop will not be moved for the corresponding feather tooth 16a will merely move in the notch 12 which is concentric with the shaft. In Fig. 5 the stop of Fig. 3 is shown as moved to operative position by the upper right hand shaft 16, the feather tooth 16'* of which has enwill further be noted from this figure (Fig.

'5) that the stop l0 positively locks all the other shafts 16 so that no other group of stops can be moved to position While this stop, or the group to which it belongs, is in operative position. This is accomplished by the portions of the stop between the notches 11 and 12 which stand opposite the feather teeth 16a of the shafts 16 of the groups not in use thereby electually preventing the turning ot' any of these shafts. If it is de-. sired that three of the groups shall have one or more columnar positions in common then a stop such as shown in Fig. 9 is used and so turned that the segmental notch 12 stands opposite the group shaft 16 of the group which does not have that particular columnar position. If all the groups 'have a common columnar position at one or more points then a stop suoli as shown in Fig. 10 is used and any one of the group shafts 16 will set it to operative position. The stops are readily removable and hence the operator can, at will, change the positions of the stops andthe grouping to meet any requirements, While by means of the knurled head the rod 21 can be turned and pushed down to more any desired group of stops to operative position.- y

Other forms or modifications of my invention may be devised Without depart-ing from the spirit and scope of the claims.

I claim:

1. In a typewriting machine provided with talmlating` mechanism, a plu alit-y of movable stops having predetermined group arrangement and separate means for each group for positively moving the same into orout of operative position.

2. In a typewriting machine provided with tabulating mechanism, a plurality of movable stops, a support tor said stops, means on the stops adapting them to be arranged in predetermined groups and separate means for each group tor positively moving the same into or out of operative position.

3. ln a typewriting machine provided with tabulating mechanism, a plurality ot' movable stops, a support for said stops, means integral with the stops adapting them to he arranged in predetermined groups and separate means for each group carried upon said support for positively moving each group into or out of operative position.

f1. vIn a typewriting machine provided with tal'mlating meclumism, a plurality Yot' movable stops, means for retaining the stops out ot operative position, means canicd by the stops adapting them to be arranged in prtaletermined groups and separate means For each group for positively moving. the saine into 0r out of operative position.

5,111 a typt-,wiiting machine provided with tahulating mecluinisn'l, a plurality of i. interchangeable stops, a support for said stops on, which'v the stops are positioned.

either out of or in operative position,imeans integral with the stops adapting them to'be arranged in predetermined groups and sep'- aratel means for each group for positively moving the same into or out of operative position.

6. In a typeWrit-ing machine provided withA tabulating mechanism, a plurality of interchangeable stops, a support for said stops on Which the' stopsi are positioned either out of or in operative position, meansA coperating between the stops and support for holding the stops temporarily out of operative position, means integral with the stops adapting them to be arranged in predetermined groups and separate means for each group for moving `the same into or out of operative position said means for eachV group being adapted to loclth'e stops of the other groups out of operative position.

arrangement being fsuoh that when onegroup is in operative position the "stops thereof Will lock the moving means of the `other groups so that none of the other groups can be moved to operative position.

8. ln Aa typewriting machine provided with tabulat-ing mechanisma plurality of stops each with means'adapting the several stops to be arranged in one or more groups, bars 'provided with grooves in which said stops are adapted to slide, and Separate means for each group, extending transversely of said groups for positively sliding each group ot stops independently into or out ol operative position. p

9. In a iypewriting machine provided with tabulating mechanism, a plurality of stops each having either toothed or segmental notches, a bar provided with grooves in which said stops are adapted to'slide, and

means adapted to slide the stops having' toothed notches into operative position and to lock all stops having segmental not/ches out of operative posit-ion.

10. In a typewriting machine provided with talmlating mechanism, a plurality of interchangeable stops, a. bar provided with grooves in which said stops areiadapted to slide, means for positively sliding one or more of said stops into or out of operative position and means adapting stops not S0 sliding to be locked in said'grooves by said sliding means. l 1

11. ln a typewriting machine provided with tabulating rnechanisr t plurality of interchangeable stops each provided .With Irl-testimony whereof I have hereunto set toothed notehes,a support on which said stops my hand in the presence of t-Wo subscribing 10 ae adapted to slide, a rcbk shaft extending witnesses.

a onoP said su ort an carryin means y adnldied to coplzrate with the nogtehes in MARQUIS LOGKVVOOD said stops to slide-the same and means for itnesses:

rocking said shaft whereby stops may be JOHN A. KEHLENBECK,

moved into operative position. JOHN A. FERGUSON. 

